Attack on Titan is set in a world where humanity lives inside cities surrounded by enormous walls due to the Titans, gigantic humanoid beings who devour humans. It covers the first story arcs (chapters 1–34) from the original manga by Hajime Isayama.
The first season of the Attack on Titan anime television series was produced by IG Port's Wit Studio and directed by Tetsurō Araki, with Yasuko Kobayashi handling series composition and Kyōji Asano providing character designs.